I knew when we tore down our termite-infested shed, that I wanted to use the concrete slab for a fire pit area. But I didn't get the idea to stain it to look like tile until I saw it done at a friends house. I would have done the entire area, but I ran into a hitch when I remembered there is some leftover glue or caulk all around the edges. So I decided to leave some areas just plain concrete. I am happy with the affect.
My favorite part about this project is that it cost so little and only took a little over two hours! I power washed a few days before. Using a really big ruler and pencil I laid out the design, then used 1/2 inch masking tape. I used the sides of a large cardboard box to cover the areas to be left plain. It cost about $30 for four cans of spray paint concrete stain. I was going to stop there, but several friends suggested that I do a sealer, so I bought that for another $30 and it took about 15 minutes to roll on.
This is the before picture. It was taken the day we took the old shed down. That is the roof of the shed laying on the concrete slab.